<template>
    <div class="app-container">
    <h2 style="text-align: center;">发布新课程</h2>
        <el-steps :active="3" process-status="wait" align-center style="margin-bottom:
        40px;">
        <el-step title="填写课程基本信息"/>
        <el-step title="创建课程大纲"/>
        <el-step title="发布课程"/>
        </el-steps>
    <div class="ccInfo">
    <img :src="coursePublish.cover">
    <div class="main">
    <h2>{{ coursePublish.title }}</h2>
    <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
    <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{coursePublish.subjectLevelTwo }}</span></p>
    <p>课程讲师：{{ coursePublish.teacherName }}</p>
    <h3 class="red">￥{{ coursePublish.price }}</h3>
    </div>
    </div>
    <div>
    <el-button @click="previous">返回修改</el-button>
    <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
    </div>
    </div>
</template> 





<script>

import course from '@/api/edu/course'

export default {
    data(){
        return{
            saveBtnDisabled:false ,
            courseId:'',
            coursePublish:{

            }

        }
    },
    created(){
        //获取路由课程id值
        if(this.$route.params && this.$route.params.id){
                this.courseId = this.$route.params.id
        }

        //调用接口方法根据课程id查询
        this.getCoursePublishId()
    },
    methods:{

        previous(){
         
             this.$router.push({path:'/course/chapter/'+this.courseId})
        },
        publish(){
         
          
                //提示发布信息
                 this.$confirm('此操作将发布课程信息, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {

                     course.publishCourse(this.courseId).then(response =>{
                            
                        //提示信息
                        this.$message({
                        type: 'success',
                        message: '发布成功!'
                        });
                        
                        //回显信息
                           this.$router.push({path:'/course/list'})
                    })
                    
                }).catch(() => {
                    this.$message({
                    type: 'info',
                    message: '已取消发布'
                    });          
                });

          
              
          

        },

        //根据课程id查询课程信息
        getCoursePublishId(){
            course.getPublishCourseInfo(this.courseId)
            .then(response =>{
                 this.coursePublish = response.data.coursePublicVo   
            })

        }

    }
}
</script>



<style scoped>
.ccInfo {
background: #f5f5f5;
padding: 20px;
overflow: hidden;
border: 1px dashed #DDD;
margin-bottom: 40px;
position: relative;
}
.ccInfo img {
background: #d6d6d6;
width: 500px;
height: 278px;
display: block;
float: left;
border: none;
}
.ccInfo .main {
    margin-left: 520px;
}
.ccInfo .main h2 {
font-size: 28px;
margin-bottom: 30px;
line-height: 1;
font-weight: normal;
}
.ccInfo .main p {
margin-bottom: 10px;
word-wrap: break-word;
line-height: 24px;
max-height: 48px;
overflow: hidden;
}
.ccInfo .main p {
margin-bottom: 10px;
word-wrap: break-word;
line-height: 24px;
max-height: 48px;
overflow: hidden;
}
.ccInfo .main h3 {
left: 540px;
bottom: 20px;
line-height: 1;
font-size: 28px;
color: #d32f24;
font-weight: normal;
position: absolute;
}
</style>